Optical Glass Longpass Filter
描述
Cut Off filters
– Dichroic Filter – Longpass Edge Filters – Shortpass Edge Filters – IR Cut Filters – UV-IR Cut Off Filters | Longpass Filters transmit wavelengths greater than the cut-on wavelength, while Shortpass Filters transmit wave- lengths shorter than the cut-off wavelength. Dichroic filters perform the same function, while guaranteeing that the rejected wavelengths are reflected. Any of these filters can be designed for 0 or 45 angle of incidence. Edge and Di- chroic Filters are commonly used in Fluorescence instrumentation, Heat Rejection Applications, and as Color Filters. While somewhat angle sensitive, they are more forgiving than bandpass |